20682963937 has 8 divisors (see below), whose sum is σ = 21433789800. Its totient is φ = 19934646144.

The previous prime is 20682963919. The next prime is 20682964013. The reversal of 20682963937 is 73936928602.

It can be written as a sum of positive squares in 4 ways, for example, as 61716736 + 20621247201 = 7856^2 + 143601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20682963937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20682963137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610218 + ... + 643219.

It is an arithmetic number, because the mean of its divisors is an integer number (2679223725).

Almost surely, 2^20682963937 is an apocalyptic number.

It is an amenable number.

20682963937 is a deficient number, since it is larger than the sum of its proper divisors (750825863).

20682963937 is a wasteful number, since it uses less digits than its factorization.

20682963937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254035.

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 20682963937 in words is "twenty billion, six hundred eighty-two million, nine hundred sixty-three thousand, nine hundred thirty-seven".